<template>
  <div v-if="is_login" :style="loginstyle" class="login-container">
    <div :class="[m, 'wrapper']">
      <el-form
        ref="loginForm"
        :model="loginForm"
        :rules="loginRules"
        class="login-form"
        autocomplete="on"
        label-position="left"
      >
        <div class="login-logo">
          <img src="../../assets/login.png" alt="">
        </div>
        <div class="title-container">
          <h3 v-if="m == 'store'" class="title">商家后台登录</h3>
          <h3 v-else class="title">{{ sitesetup.ac.title || "系统登录" }}</h3>
          <span>输入你的账号、密码</span>
        </div>
        <div class="form-item">
          <label for="">用户名</label>
          <el-form-item prop="username">
            <!-- <span class="svg-container">
              <svg-icon icon-class="user" />
            </span> -->
            <el-input
              ref="username"
              v-model="loginForm.username"
              placeholder="用户名"
              name="username"
              type="text"
              tabindex="1"
              autocomplete="on"
            />
          </el-form-item>
        </div>
        <div class="form-item">
          <label for="">密码</label>
          <el-tooltip
            v-model="capsTooltip"
            content="Caps lock is On"
            placement="right"
            manual
          >
            <el-form-item prop="password">
              <!-- <span class="svg-container">
                <svg-icon icon-class="password" />
              </span> -->
              <el-input
                :key="passwordType"
                ref="password"
                v-model="loginForm.password"
                :type="passwordType"
                placeholder="密  码"
                name="password"
                tabindex="2"
                autocomplete="on"
                @keyup.native="checkCapslock"
                @blur="capsTooltip = false"
                @keyup.enter.native="handleLogin"
              />
              <span class="show-pwd" @click="showPwd">
                <svg-icon
                  :icon-class="passwordType === 'password' ? 'eye' : 'eye-open'"
                />
              </span>
            </el-form-item>
          </el-tooltip>
        </div>

        <el-button
          :loading="loading"
          type="primary"
          style="width: 100%;"
          class="diy-btn"
          @click.native.prevent="handleLogin"
        >登录</el-button>
      </el-form>
      <div class="copyright" align="center">
        <span v-if="sitesetup.copyright">{{ sitesetup.copyright }}</span><a
          v-if="sitesetup.icp"
          href="https://beian.miit.gov.cn/"
          target="_blank"
        >{{ sitesetup.icp }}</a>
      </div>
    </div>
  </div>
</template>

<script>
import { setToken } from '@/utils/auth'
export default {
  name: 'Login',
  components: {},
  data() {
    const validateUsername = (rule, value, callback) => {
      if (!value) {
        callback(new Error('Please enter the correct user name'))
      } else {
        callback()
      }
    }
    const validatePassword = (rule, value, callback) => {
      if (value.length < 6) {
        callback(new Error('The password can not be less than 6 digits'))
      } else {
        callback()
      }
    }
    return {
      sitesetup: {
        ac: []
      },
      loginForm: {},
      is_login: true,
      loginstyle: '',
      loginRules: {
        username: [
          {
            required: true,
            trigger: 'blur',
            validator: validateUsername
          }
        ],
        password: [
          {
            required: true,
            trigger: 'blur',
            validator: validatePassword
          }
        ]
      },
      passwordType: 'password',
      capsTooltip: false,
      loading: false,
      showDialog: false,
      redirect: undefined,
      token: undefined,
      m: 'admin',
      otherQuery: {}
    }
  },
  watch: {
    $route: {
      handler: function(route) {
        if (this.getQueryString('version') == '3') {
          this.is_login = false
        }
        if (this.getQueryString('m')) {
          this.m = this.getQueryString('m')
          if (this.m == 'store') {
            this.loginstyle = 'background-color: #0077AA;'
          }
        }

        const query = route.query
        if (query) {
          if (query.token) {
            this.is_login = false
            setToken(query.token)
            this.$router.push({
              path: '/'
            })
          }

          this.redirect = query.redirect
          this.otherQuery = this.getOtherQuery(query)
        }
      },
      immediate: true
    }
  },
  created() {
    // window.addEventListener('storage', this.afterQRScan)
  },
  mounted() {
    if (this.loginForm.username === '') {
      this.$refs.username.focus()
    } else if (this.loginForm.password === '') {
      this.$refs.password.focus()
    }
    this.$api
      .post('/login/sitesetup', {
        i: this.getQueryString('i')
      })
      .then((res) => {
        if (res.data) {
          this.sitesetup = JSON.stringify(res.data) == '[]' ? {} : res.data
          if (this.sitesetup.ac.title) {
            document.title = this.sitesetup.ac.title
          }
          if (this.sitesetup.ac.loginbgimg) {
            this.loginstyle = {
              backgroundImage: 'url(' + this.sitesetup.ac.loginbgimg + ')',
              backgroundRepeat: 'no-repeat',
              backgroundPosition: 'center top'
            }
          }
        }
      })
  },
  destroyed() {
    // window.removeEventListener('storage', this.afterQRScan)
  },
  methods: {
    getQueryString(name) {
      var reg = new RegExp('(^|&)' + name + '=([^&]*)(&|$)', 'i')
      var r = window.location.search.substr(1).match(reg)
      if (r != null) return unescape(r[2])
      return null
    },
    checkCapslock(e) {
      const { key } = e
      this.capsTooltip = key && key.length === 1 && key >= 'A' && key <= 'Z'
    },
    showPwd() {
      if (this.passwordType === 'password') {
        this.passwordType = ''
      } else {
        this.passwordType = 'password'
      }
      this.$nextTick(() => {
        this.$refs.password.focus()
      })
    },
    handleLogin() {
      this.$refs.loginForm.validate((valid) => {
        if (valid) {
          this.loading = true
          if (this.getQueryString('m')) {
            this.loginForm.m = this.getQueryString('m')
          }

          this.$store
            .dispatch('user/login', this.loginForm)
            .then(() => {
              this.$router.push({
                path: this.redirect || '/',
                query: this.otherQuery
              })
              this.loading = false
            })
            .catch(() => {
              this.loading = false
            })
        } else {
          console.log('error submit!!')
          return false
        }
      })
    },
    getOtherQuery(query) {
      return Object.keys(query).reduce((acc, cur) => {
        if (cur !== 'redirect') {
          acc[cur] = query[cur]
        }
        return acc
      }, {})
    }
    // afterQRScan() {
    //   if (e.key === 'x-admin-oauth-code') {
    //     const code = getQueryObject(e.newValue)
    //     const codeMap = {
    //       wechat: 'code',
    //       tencent: 'code'
    //     }
    //     const type = codeMap[this.auth_type]
    //     const codeName = code[type]
    //     if (codeName) {
    //       this.$store.dispatch('LoginByThirdparty', codeName).then(() => {
    //         this.$router.push({ path: this.redirect || '/' })
    //       })
    //     } else {
    //       alert('第三方登录失败')
    //     }
    //   }
    // }
  }
}
</script>

<style lang="scss">
/* 修复input 背景不协调 和光标变色 */
/* Detail see https://github.com/PanJiaChen/vue-element-admin/pull/927 */

$bg: #283443;
$light_gray: #fff;
$cursor: #fff;

@supports (-webkit-mask: none) and (not (cater-color: $cursor)) {
  .login-container .el-input input {
    color: $cursor;
  }
}

/* reset element-ui css */
.login-container {
  .el-input {
    display: inline-block;
    height: 47px;
    width: 85%;

    input {
      background: transparent;
      border: 0px;
      -webkit-appearance: none;
      border-radius: 0px;
      padding: 12px 5px 12px 15px;
      color: $light_gray;
      height: 47px;
      caret-color: $cursor;

      &:-webkit-autofill {
        box-shadow: 0 0 0px 100% $bg inset !important;
        -webkit-text-fill-color: $cursor !important;
      }
    }
  }

  .el-form-item {
    border: 1px solid rgba(255, 255, 255, 0.1);
    background: rgba(0, 0, 0, 0.1);
    border-radius: 5px;
    color: #454545;
  }
}
</style>

<style lang="scss" scoped>
$bg: #2d3a4b;
$dark_gray: #889aa4;
$light_gray: #eee;

.login-container {
  min-height: 100%;
  width: 100%;
  background-color: $bg;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  .wrapper {
    width: 520px;
    background: #fff;
    padding: 20px;
    border-radius: 10px;
  }
  .login-form {
    position: relative;
    max-width: 100%;
    padding: 35px;
    margin: 0 auto;
    overflow: hidden;
    border: 1px solid #ccc;
    border-radius: 10px;
    .login-logo {
      display: flex;
      justify-content: center;
      margin-bottom: 20px;
    }
      ::v-deep .el-button {
        height: 40px;
        background: #409eff;
      }
    .form-item {
      label {
        padding: 10px 0;
        display: block;
      }
      ::v-deep .el-form-item {
        background: #fff;
        border: 1px solid #ccc;
        color: #000;
      }
      ::v-deep .el-input input {
        color: #000;
        caret-color: #000;
         background-color:transparent;
      }
      ::v-deep .el-input input:-webkit-autofill {
        color: #000 !important;
        -webkit-text-fill-color: #000 !important;
        background-image: none;
        -webkit-box-shadow: 0 0 0px 1000px transparent inset !important;
        background-color:transparent;
        transition: background-color 50000s ease-in-out 0s;
      }
    }
  }

  .tips {
    font-size: 14px;
    color: #fff;
    margin-bottom: 10px;

    span {
      &:first-of-type {
        margin-right: 16px;
      }
    }
  }

  .svg-container {
    padding: 6px 5px 6px 15px;
    color: $dark_gray;
    vertical-align: middle;
    width: 30px;
    display: inline-block;
  }

  .title-container {
    position: relative;
    margin-bottom: 20px;
    .title {
      font-size: 26px;
      color: #000;
      margin: 0px auto 4px auto;
      text-align: left;
      font-weight: bold;
    }
    span {
      text-align: left;
      font-size: 14px;
    }
  }

  .show-pwd {
    position: absolute;
    right: 10px;
    top: 7px;
    font-size: 16px;
    color: $dark_gray;
    cursor: pointer;
    user-select: none;
  }

  .thirdparty-button {
    position: absolute;
    right: 0;
    bottom: 6px;
  }

  @media only screen and (max-width: 470px) {
    .thirdparty-button {
      display: none;
    }
  }
}

.store {
  height: 100%;
  width: 100%;
}

.copyright {
  color: #3e4856;
}
</style>
